Nut-lock.



E. M. ELTON.

NUT LOCK.

APPLICATION FILED MAR. H. 1918.

Patented Mar. 4,1919.

7 ATTORNEYS Y "ab neation'i iama c 11.1 18: Seria1No.221 7 24.i'4

' 1 QFFIQE,

EDWIN Meme;memosxwwxambmo. I

' NUT-Look. f

To'all whom itm'ay concern."

- a citizenofthefUnited States, :and-afiresidentof Atwater,=*in the'county of Portage and State of Ohio, have invented certain v new and useful Improvements inNut-Locks, of which the-followingis a specification. 1 My invention is an improvement innut locks, and'has for its objecttoprovide adevice of the character specified especially adapted for use in looking nuts on rail joints.

In the drawings:

Figure 1 is a side view of a rail joint in which the improved nut lock is used;

Fig. 2 is a horizontal section on the line of the bolts; Fig. Sis a top plan view showing the manner of placingor removing the locks; and

Fig. 4 is a front view of the clamp. The present embodiment of the invention is shown in connection with a rail joint, the rail ends 1 being connected by the usual fish plates 2, bolts 3 and nuts 4. The bolts are passed through registering openings in the fish plates and the webs of the rails in the usualmanner, six bolts being used in the present instance, three bolts being passed through from one side and three from the other, and the members of each series of bolts alternate with the members of the other series. f

The improved lock comprises a plate 5 of resilientmetal, havingat its center a later ally ofiset portion 6, forming between each end of the strip and the laterally offset portion a' transverse shoulder 7 and these shoulders are spaced apart to receive a nut 4 and to lock the nut from turning when it is in y the. laterally offset portion of the lock.

Each end of the plate has a head 8, provided with an 0pening8 shaped to receive a nut, the opening having a hexagonal outlinein the present instance. Theplate 5 is arched longitudinally, 'as shown more particularly in Fig. 2, and it is arranged at'the joint with its convex side outward, and with the concave side toward the fish plate.

In use, a washer 9 is arranged between the nut 4 of the bolt which engages the laterally offset portion 6 and the fish plate, and the opening through the laterally 'oflset portion which receives the bolt'is'large enough to also receive the washer. In placing the improved lock, the rails are bolted together, with the exception of placing the nuts of the two bolts at the ends of therail, that is, the

1 I Specification ofjIiette rs Patent.

ofgth'e rails; The -'plate 5- is then placed with the washer 9 passing through the'opening at the laterally ofiset iportionb, and'with the openings 8 over the mtsaethaesideor the joint," asf-s'hown in' Fig- 23 B cause of the" arch the plate 5, it is necessary to clamp the same to the rail, duringthe placing of thejnut' at the centerofthe plate, and the clamp shown in Figs. 3 and 4 is utilized for this purpose.

This clamp, as shown, comprises two angle bars 10 and 10 'which are pivotedtogether at one end, as indicated at 11. Each angle bar has an-extension 12 and 12, respectively,

at the pivotal connection, and a cam lever 13 is pivoted to one of the extensions, the cam of the lever engaging the other extension in such manner that when the lever is thrown to the right of Fig.4, the substantially parallel portions of the members 10 and 10 will be forced together. Each of these portions above mentioned is notched, as shown at 14, to engage the plate 5 to prevent slipping of the clamp, and the clamp isarranged as shown in Fig. 3, engaging-the two looks at opposite sides of the joint. With the parts in the position ofFig. 4 the clamping. 1 'members 10 and lofiare engaged with the locks at opposite sides'ofthe rail, after which the lever is turned over into the. position of Fig. 3, thus forcing the laterally offset portions 6 of the two locks'towardthe fish plates. It will be noticed; that each washer 9 has a'radial continuous rib 15 at its inner end,'which abuts against the fish plate, and .the laterally offset portions 6 of' the locks are forced downward on to these ribs. The nuts 40f the bolts adjacentto the meeting ends of the railsare now turned home and the clamp is released. Thus with V the two locks all six bolts of the joint are locked from turning, and they cannot become accidentally released. To release the nuts it is necessary to again clamp the locks,

' to release the nuts 4 of the boltsadja'cent to the meeting ends of the rails, after which the plates 5 maybe removed, releasing all of the bolts. l

While the improved lockisshown in con-' nection with a railjoint, it'is obvious that it might be used with equal facility in other situations where a series of nuts is desired. to belocked. v V v I claim: V V r l 1. The combination with a rail joint, of

Patented Mar. 4,1919.

, plate having at the central locking means an opening-for the-bolt, and a Washer rotatable A11 c t al ut-fro th f a l- 15' of ithis patent nay heiohtain looks for locking the ends of the joint, nd locks being arranged upon opposlte sides of the joint and each lock locking three nuts,

each lock comprising a plate having intenplate being arched longitudinally and arranged with its convex surface outward,zsa1d inthe opening for engaging the bolt 2;;-,The rcom'bination with a rail: j oint,- of 7 looks :for locking the- -nuts-; of the jOlIltyStlld to space locks being arranged upon oppositesides of the jointand each'lock locking three nuts, eachlock-"coinprising a plate having intermediate its ends means for engaging the Central nutto prevent rotation thereof and lateral nuts to prevent turning the'reof, said plate {being-i. arched longitudinally and arranged'with its convex surface outward, said plate having at the vcentral. 1ockingfmeans an opening for the bolt; and ;means at the central nut for spacing the nut fromtherail.

-MARGARET M.--BEEGHLEY. J

ed f ori cents each, addressing the Con miesioner of! fatents,

, I pk I WaLSlringtomhQQL r; ,7 l

having at each end means for engaging the a l -EDWIN MERITT; ELTONJ 

